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| author | Chris Lattner <sabre@nondot.org> | 2008-06-20 05:12:56 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-06-20 05:12:56 +0000 |
| commit | 476983ab8cc765cfb88c9b49d82edf5c4ab85e25 (patch) | |
| tree | 3689de4d4c8aa5c55b18b2bbbc8c1a857a28f808 /test | |
| parent | 1d5610ad4d7469c6bc997c509a590d94f36258e8 (diff) | |
| download | external_llvm-476983ab8cc765cfb88c9b49d82edf5c4ab85e25.zip external_llvm-476983ab8cc765cfb88c9b49d82edf5c4ab85e25.tar.gz external_llvm-476983ab8cc765cfb88c9b49d82edf5c4ab85e25.tar.bz2 | |
Fix PR2471, which is a bug involving an invalid promotion from a conditional load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52525 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstCombine/2008-06-19-UncondLoad.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2008-06-19-UncondLoad.ll b/test/Transforms/InstCombine/2008-06-19-UncondLoad.ll new file mode 100644 index 0000000..fa3dc0a --- /dev/null +++ b/test/Transforms/InstCombine/2008-06-19-UncondLoad.ll @@ -0,0 +1,16 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep load | count 3 +; PR2471 + +declare i32 @x(i32*) +define i32 @b(i32* %a, i32* %b) { +entry: + %tmp1 = load i32* %a + %tmp3 = load i32* %b + %add = add i32 %tmp1, %tmp3 + %call = call i32 @x( i32* %a ) + %tobool = icmp ne i32 %add, 0 + ; not safe to turn into an uncond load + %cond = select i1 %tobool, i32* %b, i32* %a + %tmp8 = load i32* %cond + ret i32 %tmp8 +} |